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  • Are Mapper / Reducers configurable in Hadoop?

    How one can decide, for a job, how many Mapper / Reducers are required?

    Dataflair50 pointsBadges:
  • How to count many lines in large files

    My partner and I usually work with files that are larger than 20 GB in size but we have to count the number of lines in any given file often. We've been doing it using cat fname | wc -| but it takes forever. Does anyone know of a way that will make it faster? We're working with a high performance...

    ITKE1,059,805 pointsBadges:
  • Available Scala projects to use Hadoop and MapReduce

    My team has recently begun a big data, analytics project and we're considering using Scala. Are there any Scala projects that are available to do Hadoop and MapReduce programs?

    ITKE1,059,805 pointsBadges:
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